Session Notes for R1 (Rapid Turnaround Monday) session: r1831
Prepared by C. Thomas, NVI, Inc./GSFC
Refer to http://ivscc.gsfc.nasa.gov/program/descrip2018.html#r1
for the session purpose.
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----- Parameter listing --------------------------------------
Experiment: R1831 Description IVS-R1
Scheduler: NASA Correlator: WASH
Start: 2018-057-17:00:00 End: 2018-058-17:00:00
Current yyyyddd: 2018057 (2018.16) ( 18176 MJD, MON. 26FEB.)
Greenwich sidereal time: 03:25:58 (17:00:00 UT)
Sun's RA and DEC: 22h 38.8m -8d 33.1
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Important Station Information
Onsala was tagged along to this schedule file. The SNR limits
were decreased for the Onsala baselines so that Onsala could
get more scans per hour. Onsla only picked-up 6 scans per
hour with 20/15 snr limits. Onsala picked-up 10 scans per
hour with 15/13 snr limits.
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First observations
Source Start DURATIONS
name yyddd-hhmmss Ft Ht Is Ke Ny Kv Ww Wn Yg On
0738+313 18057-170000| 90 300 300 77 300 109 300 87|
1936-155 18057-170000| 259 259 |
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Last observations
Source Start DURATIONS
name yyddd-hhmmss Ft Ht Is Ke Ny Kv Ww Wn Yg On
1759-396 18058-165327| 154 154 143 |
1803+784 18058-165422| 43 51 84 84 |
1751+288 18058-165600| 63 63 |
0727-115 18058-165658| 177 177 177 43 177 43|
0059+581 18058-165817| 98 98 98 |
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SKED Summary from file ./r1831.skd for experiment R1831
(all scans with at least one subnet station)
Average number of obs. per baseline per source(normalized by up-time) = 6.9
Min = 0.0 Max = 90.0 (Baseline Ht-Ww on 1749+096) RMS = 12.6
Total time: 1440 minutes ( 24.0 hours).
Key: Ft=FORTLEZA Ht=HART15M Is=ISHIOKA Ke=KATH12M Ny=NYALES20
Kv=SEJONG Ww=WARK12M Wn=WETTZ13N Yg=YARRA12M On=ONSALA60
Ft Ht Is Ke Ny Kv Ww Wn Yg On Avg
% obs. time: 33 56 71 72 61 61 60 69 69 24 58
% cal. time: 3 5 6 4 6 4 4 6 4 3 5
% slew time: 40 26 11 15 25 18 11 5 15 16 19
% idle time: 23 12 11 8 7 15 24 19 11 57 19
total # scans: 286 440 503 384 494 361 309 526 358 228 388
# scans/hour : 12 18 21 16 21 15 13 22 15 10 16
Avg scan (sec): 100 109 122 162 106 147 168 113 167 91 128
# data tracks: 16 16 16 16 16 16 16 16 16 16
# Mk5 tracks: 16 16 16 16 16 16 16 16 16 16
Total TB(M5): 0.92 1.54 1.97 1.99 1.68 1.70 1.66 1.89 1.91 0.66 1.59
# OF OBSERVATIONS BY BASELINE
| Ft Ht Is Ke Ny Kv Ww Wn Yg On Total
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Ft| 196 16 0 108 10 11 163 5 80 589
Ht| 111 79 143 73 54 243 94 110 1103
Is| 223 306 315 150 239 172 118 1650
Ke| 106 189 215 84 297 54 1247
Ny| 201 44 390 75 180 1553
Kv| 122 168 168 91 1337
Ww| 3 205 4 808
Wn| 68 204 1562
Yg| 52 1136
On| 893
Number of 2-station scans: 414
Number of 3-station scans: 266
Number of 4-station scans: 168
Number of 5-station scans: 170
Number of 6-station scans: 80
Number of 7-station scans: 27
Number of 8-station scans: 9
Number of 9-station scans: 0
Number of 10-station scans: 0
Total number of scans: 1134
Total number of obs: 5939
Total integrated obs-time: 678576
Average obs-time: 114.3
Histogram of observation durations
Dur: 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300
#Obs: | 1185| 578| 476| 535| 571| 356| 415| 292| 262| 228| 175| 152| 126| 143| 63| 109| 77| 196
Average X-band SNRs by baseline
| Ft Ht Is Ke Ny Kv Ww Wn Yg On AVG
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Ft| 38 28 - 34 28 27 35 30 26 34
Ht| 40 37 50 36 29 54 46 45 44
Is| 46 61 51 45 47 39 36 48
Ke| 35 36 39 32 38 26 38
Ny| 46 39 78 29 70 58
Kv| 32 36 30 28 40
Ww| 43 34 42 37
Wn| 33 64 54
Yg| 26 35
On| 47
Average S-band SNRs by baseline
| Ft Ht Is Ke Ny Kv Ww Wn Yg On AVG
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Ft| 26 18 - 20 15 15 26 16 17 23
Ht| 29 23 33 21 21 44 30 30 31
Is| 28 33 30 27 35 28 23 30
Ke| 21 20 23 23 25 15 23
Ny| 23 21 44 22 31 32
Kv| 18 23 20 16 23
Ww| 21 23 14 23
Wn| 27 40 36
Yg| 16 24
On| 27
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Recording mode
Name Code
GEOSX SX
Recording mode for: FORTLEZA ONSALA60
Mode Tot.Rate Tot.BandW #BBC #bits Barrel
Mk341:2 256 Mbits 128 MHz 14 1 NONE
Chan.BW #Subpasses Tracks(*fan) Tot.tracks
8.00 MHz 1 16(*2) 32
X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz
S-band spanned bw= 140.0 MHz rms spanned bw= 50.9 MHz
Effective number of 1-bit channels recorded per sub-pass
X S Total
10.00 6.00 16.00
Recording mode for: HART15M ISHIOKA KATH12M NYALES20 SEJONG WARK12M WETTZ13N YARRA12M
Mode Tot.Rate Tot.BandW #BBC #bits Barrel
Mk341:1 256 Mbits 128 MHz 14 1 NONE
Chan.BW #Subpasses Tracks(*fan) Tot.tracks
8.00 MHz 1 16(*1) 16
X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz
S-band spanned bw= 140.0 MHz rms spanned bw= 50.9 MHz
Effective number of 1-bit channels recorded per sub-pass
X S Total
10.00 6.00 16.00
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Monitoring Sources
Source Min Max Actual #Num #Scans
1335+552 1.00 1.50 0.19 11 6
0246+061 1.00 1.50 0.30 18 4
0859+681 1.00 1.50 0.24 14 8
NRAO190 1.00 1.50 0.59 35 12
1548+056 1.00 1.50 1.31 78 20
OK290 1.00 1.50 0.30 18 12
2136+141 1.00 1.50 1.58 94 17
0738+313 1.00 1.50 1.62 96 14
1252+119 1.00 1.50 0.40 24 5
1651+391 1.00 1.50 0.05 3 3
Total 6.58 391 101
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Minor Options
Astro Abs 3.00
BegScan Rel 1.00
EndScan Rel 1.00
NumObs Rel 1.00
StatIdle Abs 3.00
StatWt Abs 2.00
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Major Options
Subnet FtHtIsKeNyKvWwWnYgOn
SkyCov Yes
AllBlGood Yes
MaxAngle 180.00
MinAngle 15.00
MinBetween 20
MinSunDist 4.00
MaxSlewTime 300
TimeWindow 4.00
MinSubNetSize 2
NumSubNet 1
Best 60
FillIn Yes
FillMinSub 3
FillMinTime 120
FillBest 80
Add_ps 30.0
SNRWts Yes
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SNR Targets
Minimum SNR by baseline for multi-baseline scans
X-band (margin 0) S-band (margin 0)
X-band (ast_margin 0) S-band (ast_margin 0)
Ft Ht Is Ke Ny Kv Ww Wn Yg Ft Ht Is Ke Ny Kv Ww Wn Yg
Ht 20 Ht 15
Is 20 20 Is 15 15
Ke 20 20 20 Ke 15 15 15
Ny 20 20 20 20 Ny 15 15 15 15
Kv 20 20 20 20 20 Kv 15 15 15 15 15
Ww 20 20 20 20 20 20 Ww 15 15 15 15 15 15
Wn 20 20 20 20 20 20 20 Wn 15 15 15 15 15 15 15
Yg 20 20 20 20 20 20 20 20 Yg 15 15 15 15 15 15 15 15
On 15 15 15 15 15 15 15 15 15 On 13 13 13 13 13 13 13 13 13